Chemistry Basics
This scale, ranging from 0 to 14, measures how acidic or basic a substance is.
What is the pH scale?
This type of bond forms when electrons are transferred from one atom to another.
What is an ionic bond?
Burning wood is an example of this type of change.
What is a chemical change?
Mixing bleach and ammonia produces this dangerous chemical.
What is chlorine gas?
This heavy metal, once used in paint and gasoline, can cause severe neurological damage, especially in children.
What is lead?
A substance with a pH of 7 is considered this.
What is neutral?
Table salt (NaCl) is an example of this type of bond.
Table salt (NaCl) is an example of this type of bond.
Dissolving sugar in water is this type of change, as no new substance is formed.
Dissolving sugar in water is this type of change, as no new substance is formed.
This common household chemical, with the formula NH₃, has a strong smell and is often used as a cleaner.
What is ammonia?
This toxic plant, also known as deadly nightshade, contains dangerous alkaloids that affect the nervous system.
What is belladonna?
Lemon juice has a pH close to this number, making it highly acidic.
What is 1?
This type of bond occurs when two atoms share electrons, as seen in water (H₂O).
What is a covalent bond?
These four signs indicate a chemical change is occurring.
What are color change, temperature change, gas production, and precipitate formation?
This clear household liquid, with the formula H₂O₂, is used as a disinfectant and can break down into water and oxygen.
What is hydrogen peroxide?
The venom of this small but deadly marine creature, known for its bright blue rings, can cause paralysis.
What is the blue-ringed octopus?
A substance with a pH of 14, like drain cleaner, is classified as this.
What is a strong base?
The ability of an atom to attract shared electrons in a covalent bond is measured using this property.
What is electronegativity?
Rusting occurs when iron reacts with oxygen and water, forming this specific chemical compound.
What is iron(III) oxide (Fe₂O₃)?
Vinegar is commonly used for cleaning due to the presence of this weak acid.
What is acetic acid?
This heavy metal, historically found in pesticides and water supplies, is infamous for causing long-term poisoning.
What is arsenic?
The pH scale is logarithmic, meaning a pH of 4 is this many times more acidic than a pH of 6.
What is 100 times?
Graphite and diamond are both made of carbon but have different structures due to this kind of bonding difference.
What are different allotropes with varying covalent bonding arrangements?
In a chemical reaction, the total mass of reactants and products must be the same due to this fundamental law.
What is the Law of Conservation of Mass?
Epsom salt, commonly used in baths, has the chemical formula MgSO₄ and contains this essential mineral.
What is magnesium?
The venom of the cone snail contains compounds that affect this system in the human body.
What is the nervous system?